lock-out / tag-out types of energy types of energy electrical electrical mechanical mechanical...
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Types of EnergyTypes of Energy ElectricalElectrical MechanicalMechanical ChemicalChemical ThermalThermal HydraulicHydraulic PneumaticPneumatic
Control of Hazardous Control of Hazardous EnergyEnergy
OSHA Standard 1910.147OSHA Standard 1910.147
Electric shock can killElectric shock can killas low as 30 volts can carry enough current to killas low as 30 volts can carry enough current to kill
Use Safe Electrical PracticesUse Safe Electrical Practices
Use non-conducting toolsUse non-conducting tools Check circuits dead Check circuits dead
before workingbefore working Lock & Tag source Lock & Tag source
breakers not switchesbreakers not switches Ensure all control power Ensure all control power
is de-energizedis de-energized Discharge all capacitors Discharge all capacitors
after Lockoutafter Lockout
Mechanical Energy Mechanical Energy HazardsHazards
2 Types2 Types Kinetic – in motionKinetic – in motion
AmputationsAmputations LacerationsLacerations FracturesFractures Loss of lifeLoss of life
Potential – storedPotential – stored Energy stored in machineryEnergy stored in machinery WeightsWeights & & SpringsSprings Pistons under pressurePistons under pressure Hydraulic controlsHydraulic controls
Chemical Energy HazardsChemical Energy Hazards
Chemicals have energy that can Chemicals have energy that can start firesstart fires cause skin burnscause skin burns generate harmful gases or fumesgenerate harmful gases or fumes
Before working – release, drain or Before working – release, drain or vent chemicals safelyvent chemicals safely
Thermal Energy HazardsThermal Energy Hazards
Energy of Heat (and cold)Energy of Heat (and cold) Hot equipment & fluids will Hot equipment & fluids will
burn youburn you
Cold fluids can cause injury Cold fluids can cause injury alsoalso
Quick release of Quick release of compresses gases can compresses gases can freeze your skinfreeze your skin
Allow equipment to reach a Allow equipment to reach a safe temperature before safe temperature before starting work.starting work.
Hydraulic EnergyHydraulic Energy
Energy of Liquids Under PressureEnergy of Liquids Under Pressure pressure can cause equipment pressure can cause equipment
to moveto move rapid release can cause injury rapid release can cause injury or ejection of system partsor ejection of system parts
Relieve pressure slowly into a Relieve pressure slowly into a proper containerproper container
Pneumatic Energy Pneumatic Energy HazardsHazards
Energy of Compressed Gases Energy of Compressed Gases uncontrolled release can cause uncontrolled release can cause
injuryinjury rapid de-pressurization creates rapid de-pressurization creates
extreme low temperatureextreme low temperature
Properly vent all systems before Properly vent all systems before starting workstarting work
First Step In LOTOFirst Step In LOTO
Know your equipment & Know your equipment & systemssystems hazardshazards isolation pointsisolation points procedure for Lockoutprocedure for Lockout
Working on unfamiliar machinery is Working on unfamiliar machinery is a hazarda hazard
Who Can Lockout Who Can Lockout Equipment?Equipment?
Only Employees who have Only Employees who have been trained been trained
and authorized and authorized
by managementby management
Items needed for LOTOItems needed for LOTO Written LOTO schedule Written LOTO schedule Locks & Tags - identified to the Locks & Tags - identified to the
worker worker Hasps - for placing locks & tags Hasps - for placing locks & tags Breaker Clips - for electrical Breaker Clips - for electrical
LOTO LOTO Blank Flanges (pancakes)- for Blank Flanges (pancakes)- for
fluid lines fluid lines Valve Covers - for LOTO of Valves Valve Covers - for LOTO of Valves Plug Buckets - for electrical plugs Plug Buckets - for electrical plugs
What’s a Lock?According to OSHA; a lock must be …1. Provided by the employer. 2. Singularly identified; shall be the only
devices(s) used for controlling energy; shall not be used for other purposes.
3. Durable4. Standardized; Color; shape; or size 5. Substantial; enough to prevent removal
without the use of excessive force 6. Identifiable; must indicate the identity of
the employee applying the device(s).
What’s a Tag?According to OSHA; a tag must
be… Provided by the employer. Singularly identified; shall be the only
devices(s) used for controlling energy; shall not be used for other purposes.
Durable; shall not deteriorate Standardized;
Color Shape Size Print and Format
Substantial; A minimum unlocking strength of no less than 50 pounds.
Identifiable; shall indicate the identity of the employee applying the device(s).
Warn against hazardous conditions Do Not Start. Do Not Open. Do Not Close. Do Not Energize. Do Not Operate.
What’s a Tag?(cont.)
Use of Locks & TagsUse of Locks & Tags
Use only those Use only those issued to youissued to you
Never use another Never use another workers lock or tagworkers lock or tag
Ask your Ask your supervisor if you supervisor if you need more LOTO need more LOTO equipmentequipment
6 Step LOTO Procedure6 Step LOTO Procedure
Prepare for Shutdown Prepare for Shutdown Shutdown Equipment Shutdown Equipment Isolate all energy sources Isolate all energy sources Place Locks & Tags Place Locks & Tags Release Stored Energy Release Stored Energy Verify Equipment IsolationVerify Equipment Isolation
Release from LOTORelease from LOTO Inspect Area and Equipment Inspect Area and Equipment Ensure all Machine Guards in Ensure all Machine Guards in
place place Move tools away from Move tools away from
equipment equipment Inform others of startup Inform others of startup Restore system connections Restore system connections Remove Locks & Tags Remove Locks & Tags Restore equipment to normal Restore equipment to normal Conduct normal startupConduct normal startup
Who can remove Locks & Who can remove Locks & Tags?Tags?
Only the employee Only the employee
who placed the tagwho placed the tag
oror
a a supervisor, supervisor,
after obtaining permissionafter obtaining permission
from the worker from the worker
who placed the tagwho placed the tag
A piece of equipment A piece of equipment already has a lock and already has a lock and
tag. Do I have to place my tag. Do I have to place my own locks & tags?own locks & tags?YES. YES.
Each person working Each person working
on the equipment on the equipment
must place their must place their
own locks and tags own locks and tags
to ensure their safety.to ensure their safety.